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authorChristoph Hellwig <hch@lst.de>2018-07-30 09:36:26 +0200
committerJoerg Roedel <jroedel@suse.de>2018-08-08 11:06:20 +0200
commitd88e61faad526a5850e9330c846641b91cf971e7 (patch)
tree936bfd3d693f904d1a3de9f9e51034ba0dd6329c /drivers/iommu/iommu.c
parent58d1131777a4b7c228267b809bd88f7be66edcfb (diff)
downloadlinux-d88e61faad526a5850e9330c846641b91cf971e7.tar.gz
iommu: Remove the ->map_sg indirection
All iommu drivers use the default_iommu_map_sg implementation, and there
is no good reason to ever override it.  Just expose it as iommu_map_sg
directly and remove the indirection, specially in our post-spectre world
where indirect calls are horribly expensive.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/iommu.c')
-rw-r--r--drivers/iommu/iommu.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index f3698006cb53..8c15c5980299 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -1673,8 +1673,8 @@ size_t iommu_unmap_fast(struct iommu_domain *domain,
 }
 EXPORT_SYMBOL_GPL(iommu_unmap_fast);
 
-size_t default_iommu_map_sg(struct iommu_domain *domain, unsigned long iova,
-			 struct scatterlist *sg, unsigned int nents, int prot)
+size_t iommu_map_sg(struct iommu_domain *domain, unsigned long iova,
+		    struct scatterlist *sg, unsigned int nents, int prot)
 {
 	struct scatterlist *s;
 	size_t mapped = 0;
@@ -1714,7 +1714,7 @@ out_err:
 	return 0;
 
 }
-EXPORT_SYMBOL_GPL(default_iommu_map_sg);
+EXPORT_SYMBOL_GPL(iommu_map_sg);
 
 int iommu_domain_window_enable(struct iommu_domain *domain, u32 wnd_nr,
 			       phys_addr_t paddr, u64 size, int prot)